docs: update build badge

Signed-off-by: Rui Chen <rui@chenrui.dev>

README.md

@@ -1,12 +1,12 @@
 
 [![GitHub license](https://img.shields.io/badge/license-apache-blue.svg?style=flat)](https://www.apache.org/licenses/LICENSE-2.0)
 [![Version](https://img.shields.io/badge/version-1.3-red.svg)](https://github.com/jarulraj/sqlcheck/)
-[![Build Status](https://travis-ci.org/jarulraj/sqlcheck.svg?branch=master)](https://travis-ci.org/jarulraj/sqlcheck)
+[![main](https://github.com/jarulraj/sqlcheck/actions/workflows/main.yml/badge.svg)](https://github.com/jarulraj/sqlcheck/actions/workflows/main.yml)
 [![Coverage Status](https://coveralls.io/repos/github/jarulraj/sqlcheck/badge.svg?branch=master)](https://coveralls.io/github/jarulraj/sqlcheck?branch=master)
 
 ## What Is SQLCheck?
 
-`sqlcheck` automatically detects common SQL anti-patterns. Such anti-patterns often slow down queries. Addressing them will, therefore, help accelerate queries. 
+`sqlcheck` automatically detects common SQL anti-patterns. Such anti-patterns often slow down queries. Addressing them will, therefore, help accelerate queries.
 
 `sqlcheck` targets **all major SQL dialects**.